you can get one from an marine supply place, but Hobie just came out with there own that they use on the pro anglers. Its called the hobie through hull wiring kit and comes in a 2 pack, for $12.99. Also the hobie ones are way better than any of the boat fittings we have been using for years, they seal up a lot better. if you look in the back of the fall 2012 parts catalog you'll find it.